Zerobox Z

Z…E / Z…U - Zeroboxes Tube fan with sound-insulated housing

• E = Evolution extremely quietly
• can be installed in any position
• easy cleaning and maintenance
• easy electrical connection via IP44 terminal box
• motor protection by thermal contacts

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Description:

The Rosenberg-Zero boxes are used for ventilation of apartments,  warehouses,  factories,  toilets,  bathrooms,  locker rooms and more.  The extremely flat construction  (Ultimate)  makes  them ideal for installation in suspended ceilings.  
The very low noise fans can be installed in any position.

We distinguish between:
Zerobox Ultimate    = extremely flat design; very low noise
Zerobox Evolution    = flat design; low noise                 


Application areas:
Garage / Offices / Bars / Greenhouses / Skyscrapers / Hotels / Industrial buildings /  Basement rooms /  Playschool / Cinemas / Parking facilities / Warehouses /  Nursing homes /  Schools / Sports halls /  Supermarkets /  Workshops / Residential houses / Fitness centers / Inflatables

Reference to Directives:
 Declaration of incorporation and operating instruction are according to Machinery Directive 2006/42/EC, CE identification in  accordance to EMC-Directive 2014/30/EU, Low Voltage Directive 2014/35/EU and the Ecodesign-Directive 2009/125/EC.

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Casing:

Casing is made of sendzimir sheet steel as  sound  absorbing  construction.  The inlayed 40mm thick rockwool plates (unit range Evolution), and the 5mm insulating foam (unit range Ultimate) have a sound attenuating effect. The covering lid can easily be unscrewed to  gain access for  cleaning and maintenance.  The motor  is removable together with the impeller and spiral scroll.

Type Evolution
is equipped with 40mm thick rockwool plates

Type Ultimate
is insulated with special foam insulation 5mm thick

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Impellers:

The impellers are balanced together with the external rotor motors at two  levels  according to quality level G2.5 to DIN 1940.

Series Evolution:
The impellers are forward curved with double inlet.

Series Ultimate:
The impellers are forward curved with single inlet.

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Motor and motor protection:

All Rosenberg fans are  equipped with  direct driven  external rotor motors.  All our fans have motor protection  through thermal contacts in the motor windings as standard. The motors apply to protection class IP44/IP54.

The drive has due to an external rotor motor a space saving, compact and attractive design. The motor is fitted within the impeller, which enables the best possible cooling. For this reason  a  100%  variable speed control can be guaranteed. V-belts, additional tension bars and motor mounting devices are  not necessary.  Only well-dimensions ball-bearings,  fitted on both sides and  life  time  greased are  used.
Both ball-bearing seats are  ground to high  precision in one work process to eliminate  any  vibrations.
External rotor motors have extremely low starting currents.  The windings  comply to  isolation class F.
In addition the windings have a standard moisture impregnation.

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Electrical connection:

Series Evolution / Ultimate:
The electrical connection is mounted on the housing by a terminal box with IP44/IP54 protection.

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Installation:

Rigid folded spiral-seam ducts (Spiro),  flexible aluminium or plastic ducts with standardized diameter can be used. Zeroboxes can be installed in any position. If the Zerobox is used for several floor levels, the local laws on fire protection have to be observed.

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Air volume control:
For more information see accessories!
       
5-speed control unit:
230V à     RE / RTE

Infinietly variable control unit:
230V à    ED

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Scope of delivery:

   Zerobox (Z…E / Z…U)
   Documentation

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Important notes:

Air performance curves:
The performance curves for these fan types have been measured in mounting position D (installed on the pressure side and open on the suction side)  and  show  the  total  pressure  increase ∆pt as a function of the air flow.  The  dynamic pressure ∆pd2 refers to the flange cross section at the outlet side of the fan.  

Noise levels:
The bordered values printed in the performance curve diagrams show the "A"  weighted LWA6 sound power level at the outlet side in duct systems. The relative octave sound power level LWArel at octave medium frequency you can find on type page.

Classification of the fan series:
NRVU    = Non Residential Ventilation Units
UVU    = Unidirectional Ventilation Units

Erp-Information:
Rosenberg fans have a spezfic (pressure-) ratio < 1,05 (pressure < 5000 Pa).

Service life:
For maximum service life of Rosenberg products please beware of the maintenance hints on the manual for each product type.

Recycling and disposal:
For recycling and disposal of Rosenberg products comply with applicable locally requirements and regulations.

Zero-Boxes (Evolution) Tube fans with sound-insulated housing

The flat casing made of galvanized sheet steel as sound absorbing construction. The inlayed 40mm thick rockwool plates have a sound attenuating effect. The covering lid can easily be unscrewed to gain access for cleaning and maintenance. The motor is removable together with the impeller and spiral scroll. Inlet and outlet side with duct connection for standard round ducts can be mounted in any position.

Forward curved impellers made of galvanized sheet steel and with speed controllable external rotor motor, fitted into the impeller. The fans are balanced according to quality level G 2.5, DIN/ISO 1940 on two levels. Motor closed, protection class IP 44/54, with thermal contacts. Maintenance free ball bearings, closed on both sides, sealed for life.

Reference to Directives:
Declaration of incorporation and operating instruction are according to Machinery Directive 2006/42/EC, CE identification in accordance to EMC-Directive 2014/30/EU, Low Voltage Directive 2014/35/EU and the Ecodesign-Directive 2009/125/EC.

For further information, please click the model below for detail.

Picture of Zero-Boxes: